10012110991 has 2 divisors, whose sum is σ = 10012110992. Its totient is φ = 10012110990.

The previous prime is 10012110973. The next prime is 10012111073. The reversal of 10012110991 is 19901121001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10012110991 - 2¹⁷ = 10011979919 is a prime.

It is a super-2 number, since 2×10012110991² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10012117991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006055495 + 5006055496.

It is an arithmetic number, because the mean of its divisors is an integer number (5006055496).

Almost surely, 2^10012110991 is an apocalyptic number.

10012110991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012110991 is an equidigital number, since it uses as much as digits as its factorization.

10012110991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 25.

Adding to 10012110991 its reverse (19901121001), we get a palindrome (29913231992).

The spelling of 10012110991 in words is "ten billion, twelve million, one hundred ten thousand, nine hundred ninety-one".